Question

2x + 4 What is the value of x A.14 B.18 C.26 D.30 E.32

Answer 1

Its Between C and A For me but I will see what I get! but maybe this would help explain! 

y = 2x + 4 is the equation and they want to know what the orderd pair of the point that crosses the y axis is. We don't know what the orderd pair means.
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The y-axis contains all the points where x=0.
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If y = 2x+4, let x=0 so you can solve for "y":

y = 2*0+4
y = 4